Fushigi no Dungeon: Fuurai no Shiren GB - Tsukikage-mura no Kaibutsu

The story happens between Mystery Dungeon: Shiren the Wanderer and 4: The Eye of God and the Devil's Navel. The game's plot is about rescuing a sacrificed child and unravel the mystery of the monsters that plagues Tsukikage Village, where Shiren is stopped by during his trip.